Slow macbook pro - etrecheck done

My MacBook Pro runs slow, with regular beachballing. It previously got very slow when I installed Yosemite, so I got a pro to install Maverick instead, but again it has become slow. I make sure run only a few programs at a time, but before the Yosemite upgrade I never had a speed problem.

Here is my EtreCheck report - any ideas?

Many thanks in advance.

Problem description:

My macbook pro is slow

EtreCheck version: 2.2 (132)

Report generated 5/27/15, 8:16 AM

Download EtreCheck from http://etresoft.com/etrecheck

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Click the [Click for details] links for more information about that line.

Click the [Click to remove] links for help removing adware.

Hardware Information: ℹ️

MacBook Pro (13-inch, Mid 2012) (Technical Specifications)

MacBook Pro - model: MacBookPro9,2

1 2.5 GHz Intel Core i5 CPU: 2-core

4 GB RAM Upgradeable

BANK 0/DIMM0

2 GB DDR3 1600 MHz ok

BANK 1/DIMM0

2 GB DDR3 1600 MHz ok

Bluetooth: Good - Handoff/Airdrop2 supported

Wireless: en1: 802.11 a/b/g/n

Battery: Health = Normal - Cycle count = 259 - SN = W034259NSD3LC

Video Information: ℹ️

Intel HD Graphics 4000

Color LCD 1280 x 800

System Software: ℹ️

OS X 10.9.5 (13F1077) - Time since boot: 11 days 23:57:52

Disk Information: ℹ️

APPLE HDD HTS545050A7E362 disk0 : (500.11 GB)

EFI (disk0s1) <not mounted> : 210 MB

Macintosh HD (disk0s2) / : 499.76 GB (300.56 GB free)

HL-DT-ST DVDRW GS41N

USB Information: ℹ️

Western Digital My Passport 0830 2 TB

EFI (disk2s1) <not mounted> : 210 MB

Boot OS X (disk2s3) <not mounted> : 134 MB

My Passport (disk3) /Volumes/My Passport : 2.00 TB (1.60 TB free)

Encrypted AES-XTS Unlocked

Core Storage: disk2s2 2.00 TB Online

Apple Computer, Inc. IR Receiver

Apple Inc. BRCM20702 Hub

Apple Inc. Bluetooth USB Host Controller

Apple Inc. Apple Internal Keyboard / Trackpad

Apple Inc. FaceTime HD Camera (Built-in)

Thunderbolt Information: ℹ️

Apple Inc. thunderbolt_bus

Configuration files: ℹ️

/etc/sysctl.conf - Exists

Gatekeeper: ℹ️

Anywhere

Adware: ℹ️

Downlite, VSearch, Conduit, Trovi, MyBrand, Search ProtectAdware! [Click to remove]

Kernel Extensions: ℹ️

/Library/Application Support/Avast/components/fileshield/unsigned

[loaded] com.avast.AvastFileShield (2.1.0 - SDK 10.10) [Click for support]

/Library/Application Support/Avast/components/proxy/unsigned

[loaded] com.avast.PacketForwarder (2.0 - SDK 10.10) [Click for support]

/Library/Extensions

[loaded] com.Perfect.Driver.SystemAudioRecorder (1.0.0 - SDK 10.9) [Click for support]

/System/Library/Extensions

[loaded] com.Cycling74.driver.SAVD (1.0.0d1 - SDK 10.6) [Click for support]

Problem System Launch Daemons: ℹ️

[failed] com.apple.wdhelper.plist

Launch Agents: ℹ️

[not loaded] com.adobe.AAM.Updater-1.0.plist [Click for support]

[running] com.avast.update-agent.plist [Click for support]

[loaded] com.avast.userinit.plist [Click for support]

[running] com.avg.Antivirus.gui.plist [Click for support]

[failed] com.c54df48cba63bf58.agent.plist [Click for support] [Click for details]

Launch Daemons: ℹ️

[loaded] com.adobe.SwitchBoard.plist [Click for support]

[loaded] com.avast.init.plist [Click for support]

[loaded] com.avast.uninstall.plist [Click for support]

[loaded] com.avast.update.plist [Click for support]

[running] com.avg.Antivirus.infosd.plist [Click for support]

[running] com.avg.Antivirus.services.plist [Click for support]

[not loaded] com.c54df48cba63bf58.daemon.plist [Click for support]

[failed] com.c54df48cba63bf58.helper.plist [Click for support] [Click for details]

User Launch Agents: ℹ️

[loaded] com.avast.home.userinit.plist [Click for support]

[loaded] com.google.keystone.agent.plist [Click for support]

[failed] com.nchsoftware.fastfox.plist [Click for support]

[loaded] com.nchsoftware.scribe.schedule.LikeSurvey.plist [Click for support]

[running] com.spotify.webhelper.plist [Click for support]

User Login Items: ℹ️

iTunesHelper Application (/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)

Dropbox Application (/Applications/Dropbox.app)

Internet Plug-ins: ℹ️

Default Browser: Version: 537 - SDK 10.9

QuickTime Plugin: Version: 7.7.3

JavaAppletPlugin: Version: 14.9.0 - SDK 10.7 Check version

Safari Extensions: ℹ️

Avast Online Security

3rd Party Preference Panes: ℹ️

None

Time Machine: ℹ️

Auto backup: YES

Volumes being backed up:

Macintosh HD: Disk size: 499.76 GB Disk used: 199.20 GB

Destinations:

My Passport [Local]

Total size: 2.00 TB

Total number of backups: 4

Oldest backup: 2015-04-13 17:14:32 +0000

Last backup: 2015-05-15 08:17:22 +0000

Size of backup disk: Excellent

Backup size 2.00 TB > (Disk size 499.76 GB X 3)

Top Processes by CPU: ℹ️

36% Google Chrome Helper(15)

25% com.avast.daemon

9% WindowServer

4% Google Chrome

1% Finder

Top Processes by Memory: ℹ️

622 MB kernel_task

614 MB Google Chrome Helper(15)

111 MB Google Chrome

57 MB Skype

49 MB AVG

Virtual Memory Information: ℹ️

17 MB Free RAM

2.33 GB Used RAM

4.91 GB Swap Used